Bullets are crafted, loaded, and unloaded through the Bullet menu, which can be accessed three ways:

Through the top-left corner of the Party screen (if your class is set to Gunslinger/Soldier).

Through the bottom-left corner on MC's portrait on the Classes screen (if your class is set to Gunslinger/Soldier).

By selecting the desired gun on the Inventory screen. Guns that already have bullets in them will have a bullet icon on them. (Works regardless of your current class.)

Bullets that are unloaded or swapped out of a gun will be returned to your inventory.

Each gun's loadout is stored under its Bullet ID (unique to each player) and all duplicates will have the same bullets. If a gun with bullets is sold, used as weapon skill fodder, upgraded into another weapon, or otherwise lost, future copies of that gun will come loaded with its previous loadout.

Raising a weapon's level or level cap will not make its bullets disappear. If a gun undergoes a name change due to an upgrade (for example, changing Ten-Wolf Gun to Ten-Wolf Gun Sterling), any bullets left in the gun will be returned to your inventory.

On the Party screen, Estimated DMG accounts for the bullet you have equipped in the first slot. A bullet's damage is calculated based on Bullet ATK * 2. For example, a 50 ATK bullet equals 100% DMG.

The main character will have a Bullet status displaying how many bullets they have left. Viewing status details will list the bullet that will be used on the next normal attack.

During a normal attack, each hit uses one bullet in the same sequence they are loaded in.

If a slot does not have a bullet loaded, that slot will use a standard 50 ATK bullet during battle.

You cannot attack more times than you have bullets. For example, if you have Guaranteed TAGuaranteed Triple Attack regardless of Triple Attack Lowered debuffs but only 2 Bullets, you will perform a double attack.

Once you run out of bullets, you will have to reload through one of three ways:

This Google Spreadsheet can be used to track the total amount of materials to craft bullets. It is protected, so make a copy of it (File > Make a copy...) on your own Google account to maintain your own updates.

Shield Bullet50 ATKHits all: NoChance to gain 500-damage Shield (500)Next ATK received will be ineffective for a fixed amountStrength: 500Duration: 1.5 turnsApplied during the attack phase.On the next turn, it'll have 1 turn remaining..

Chaser Shell60 ATKHits all: Yes~80% chance to gain 15% Bonus DMGDeals bonus DMG for one-foe one-ally attacksStrength: 15%Duration: 2 turnsDoes not take effect for the following one-foe attacks in the same turn.When placed as 1st bullet and used with Open FireDeal one-foe attacks until all bullets are consumed., the effect won't affect 2nd and 3rd hit but will affect 4th, 5th, and 6th.Verification needed. .[10]

~80% chance to gain 15% Bonus DMGDeals bonus DMG for one-foe one-ally attacksStrength: 15%Duration: 2 turnsDoes not take effect for the following one-foe attacks in the same turn.When placed as 1st bullet and used with Open FireDeal one-foe attacks until all bullets are consumed., the effect won't affect 2nd and 3rd hit but will affect 4th, 5th, and 6th.Verification needed. .[10]